<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>

	<!-- <form action="postGetParameter" method = "post">
		<input type="text"  name = "userId">
		<input type ="text" name = "classId">
		<input type = "submit" value="提交">
	</form> -->
	
	<input type="text"  id = "userId">
	<input type ="text" id = "classId">
	<input type = "submit" value="提交" id ="submit">
	<!-- 构造一个json的请求，不再使用form使用ajax -->
	
	
	
	

</body>
</html>